#                            -*- shell-script -*-
#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5.  The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://www.hdfgroup.org/licenses.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.


# This file should be sourced into configure if the compiler is the
# NVIDIA nvc++ compiler or a derivative.  It is careful not to do anything
# if the compiler is not NVIDIA; otherwise `cxx_flags_set' is set to `yes'
#

# Get the compiler version in a way that works for NVIDIA nvc++
# unless a compiler version is already known
#
#   cxx_vendor:    The compiler name: nvc++
#   cxx_version:   Version number: 5.0-2, 5.2-2
#
if test X = "X$cxx_flags_set"; then
    cxx_version="`$CXX $CXXFLAGS -V 2>&1 |grep '^nvc++ '`"
    if test X != "X$cxx_version"; then
        cxx_vendor=`echo $cxx_version |sed 's/\([a-z]*++\).*/\1/'`
        cxx_version=`echo $cxx_version |sed 's/nvc++ \([-a-z0-9\.\-]*\).*/\1/'`
        echo "compiler '$CXX' is NVIDIA $cxx_vendor-$cxx_version"

        # Some version numbers
        # NVIDIA version numbers are of the form: "major.minor-patch"
        cxx_vers_major=`echo $cxx_version | cut -f1 -d.`
        cxx_vers_minor=`echo $cxx_version | cut -f2 -d. | cut -f1 -d-`
        cxx_vers_patch=`echo $cxx_version | cut -f2 -d. | cut -f2 -d-`
        test -n "$cxx_vers_major" || cxx_vers_major=0
        test -n "$cxx_vers_minor" || cxx_vers_minor=0
        test -n "$cxx_vers_patch" || cxx_vers_patch=0
        cxx_vers_all=`expr $cxx_vers_major '*' 1000000 + $cxx_vers_minor '*' 1000 + $cxx_vers_patch`
    fi
fi

# Common PGI flags for various situations
if test "X-nvc++" = "X-$cxx_vendor"; then

    ###########
    # General #
    ###########

    # Default to C++11 standard
    H5_CXXFLAGS="$H5_CXXFLAGS -std=c++11 -Minform=warn"

    ##############
    # Production #
    ##############

    PROD_CXXFLAGS=

    #########
    # Debug #
    #########

    # NDEBUG is handled explicitly in configure
    # -g is handled by the symbols flags
    DEBUG_CXXFLAGS="-Mbounds"

    ###########
    # Symbols #
    ###########

    NO_SYMBOLS_CXXFLAGS="-s"
    SYMBOLS_CXXFLAGS="-g"

    #############
    # Profiling #
    #############

    PROFILE_CXXFLAGS="-Mprof=func,line"
    # Use this for profiling with gprof
    #PROFILE_CXXFLAGS="-pg"

    ################
    # Optimization #
    ################

    HIGH_OPT_CXXFLAGS="-O4"
    DEBUG_OPT_CXXFLAGS="-gopt -O2"
    NO_OPT_CXXFLAGS="-O0"

    #################
    # Flags are set #
    #################
    cxx_flags_set=yes
fi

# Clear cxx info if no flags set
if test "X-$cxx_flags_set" = "X-"; then
    cxx_vendor=
    cxx_version=
fi
